Tait International Limited TMBH7A Manual Do Utilizador

The radio controls are the PTT key, volume control, 
on / off key, scroll keys, selection keys and function 
keys. Some keys have functions assigned to both 
short and long key presses:

■

a short key press is less than one second, and 

■

a long key press is more than one second.

The radio controls and their functions are described in 
the following sections.

PTT key

Press and hold to transmit and release to 
listen

Volume control Rotate to change the speaker volume
On/off key

Turn the radio on or off with a long press

Left and right 

 

selection keys

Action determined by the text above the 
selection key

Scroll keys

Scroll up and down through a list of menu 
options, scroll left and right in messages, 
or select the Quick Access menu

Emergency 
key

Activates emergency mode

Function keys

Programmed for frequently used options

scroll 

keys

on/off key

volume 

control

microphone 

socket

PTT key 

(press-to-talk)

red

 display

speaker

green

orange

microphone

radio status 

LEDs

function keys

 

1 to 4

left selection key

right selection key

emergency 

key